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Combined application of displacement-related and velocity-related energy dissipation devices in the aseismic design of an irregular building structure |
ZHAO Shaowei1,2, CUI Hongna1, LI Yuxiang1, GAO Hongjian1 |
1. College of Civil Engineering, Hebei University of Technology, Tianjin 300401, China;
2. Civil Engineering Technology Research Center of Hebei Province, Tianjin 300401, China |
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Abstract: A wasp-waisted and irregular overrun building is in consideration. When a pure frame structure is selected, the torsional period ratio and the inter-story drift do not satisfy the requirements in the standards. In view of the external elevation appearance, the arrangement of shear walls on the front plane is not allowed. And there is no suitable position for laying all steel bracing. After a comparison of various schemes, the seismic control plan is designed by using fluid viscous dampers and buckling-restrained braces. In this paper, a three-dimensional finite element model of the structure is established by the ETABS for the calculations of the uncontrolled structure, the structure installed with fluid viscous damper and the structure installed with fluid viscous damper and buckling-restrained brace by the modal shape decomposition response spectrum method. Then, the comparison and analysis of the dynamic characteristics and the seismic response of the three structures are made. Finally, the time-history analysis is carried out. The results show that the fluid viscous damper and the buckling-restrained brace can all reduce the seismic responses effectively. Besides that, the buckling-restrained braces can control the torsion effectively.
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Received: 08 March 2015
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[1] 于敬海, 姜旋. 被动消能减震技术的工程应用分析[J]. 低温建筑技术, 2014(3): 46-48. Yu Jinghai, Jiang Xuan. Application analysis of seismic energy dissipation technique[J]. Low Temperature Architecture Technology, 2014(3): 46-48.
[2] 周云, 周福霖. 耗能减震体系的能量设计方法[J]. 世界地震工程, 1997, 13(4): 8-12. Zhou Yun, Zhou Fulin. Energy design method for structural system with energy dissipative devices[J]. World Information on Earthquake Engineering, 1997, 13(4): 8-12.
[3] 欧进萍, 吴斌, 龙旭. 耗能减振结构的抗震设计方法[J]. 地震工程与工程振动, 1998, 18(2): 102-105. Ou Jinping, Wu Bin, Long Xu. Seismic design method of energy dissipation system[J]. Earthquake Engineering and Engineering Vibration, 1998, 18(2): 102-105.
[4] Lin Y Y. Direct displacement-based design for building with passive energy dissipation systems[J]. Engineering Structures, 2003, 25: 25-37.
[5] 翁大根, 张瑞甫, 张世明, 等. 基于性能和需求的消能减震设计方法在震后框架结构加固中的应用[J]. 建筑结构学报, 2010(增2): 66-68. Weng Dagen, Zhang Ruifu, Zhang Shiming, et al. Application of energy dissipation method in post-earthquake RC frame retrofit based on performance and demand[J]. Journal of Building Structure, 2010(Suppl 2): 66-68.
[6] 张志强, 李爱群. 建筑结构黏滞阻尼减震设计[M]. 北京: 中国建筑工业出版社, 2012. Zhang Zhiqiang, Li Aiqun. Viscous damper in the aseismic design of building structure[M]. Beijing: China Building Industry Press, 2012.
[7] 中国建筑科学研究院. GB 50011—2010 建筑抗震设计规范[S]. 北京: 中国建筑工业出版社, 2010. China Academy of Building Research. GB 50011—2010 Code for seismic design of buildings[S]. Beijing: China Architecture & Building Press, 2010.
[8] 李爱群, 丁幼亮. 工程结构抗震分析[M]. 北京: 高等教育出版社, 2010. Li Aiqun, Ding Youliang. Aseismic analysis engineering structures[M]. Beijing: The High Education Press of China, 2010.
[9] 周云. 防屈曲耗能支撑结构设计与应用[M]. 北京: 中国建筑工业出版社, 2007. Zhou Yun. The design and application of the structure with bucklingrestrained brace[M]. Beijing: China Building Industry Press, 2007.
[10] 周云, 邓雪松, 汤统壁, 等. 中国(大陆)耗能减震技术理论研究、应用的回顾与前瞻[J]. 工程抗震与加固改造, 2006, 28(6): 1-15. Zhou Yun, Deng Xuesong, Tang Tongbi, et al. State of the art and prospect of energy dissipation technology in China Mainland[J]. Earthquake Resistant Engineering and Retrofitting, 2006, 28(6): 1-15.
[11] 叶正强, 李爱群, 楼宇. 粘滞流体阻尼器用于建筑结构的减震设计原理与方法[J]. 建筑结构, 2008, 38(8): 87-90. Ye Zhengqiang, Li Aiqun, Lou Yu. Design principle and method of structural vibration energy dissipation using fluid viscous dampers[J]. Architectural Structure, 2008, 38(8): 87-90. |
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